The function appears to take an input string and returns the corresponding text representation of individual digits within the input string, separating each number with a space.

[CODE]: 

```python
def text_representation(input_string):
    digit_to_text = {
        '0': 'zero',
        '1': 'one',
        '2': 'two',
        '3': 'three',
        '4': 'four',
        '5': 'five',
        '6': 'six',
        '7': 'seven',
        '8': 'eight',
        '9': 'nine',
    }
    output_string = ' '.join([digit_to_text.get(char, '') for char in input_string if char in digit_to_text]).strip()
    return output_string
```